diff options
Diffstat (limited to 'crypto/evp/e_aes_cbc_hmac_sha1.c')
| -rw-r--r-- | crypto/evp/e_aes_cbc_hmac_sha1.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/crypto/evp/e_aes_cbc_hmac_sha1.c b/crypto/evp/e_aes_cbc_hmac_sha1.c index 960be3c..7f2848e 100644 --- a/crypto/evp/e_aes_cbc_hmac_sha1.c +++ b/crypto/evp/e_aes_cbc_hmac_sha1.c @@ -845,7 +845,12 @@ static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, case EVP_CTRL_AEAD_TLS1_AAD: { unsigned char *p = ptr; - unsigned int len = p[arg - 2] << 8 | p[arg - 1]; + unsigned int len; + + if (arg != EVP_AEAD_TLS1_AAD_LEN) + return -1; + + len = p[arg - 2] << 8 | p[arg - 1]; if (ctx->encrypt) { key->payload_length = len; @@ -862,8 +867,6 @@ static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) - len); } else { - if (arg > 13) - arg = 13; memcpy(key->aux.tls_aad, ptr, arg); key->payload_length = arg; |